'non-contractile' originates from the prefix 'non-' meaning 'not' and the word 'contractile' from Latin 'contractilis', where 'con-' meant 'together' and 'trahere' meant 'to draw'.

'contractilis' transformed into the English word 'contractile', and with the addition of the prefix 'non-', it became 'non-contractile'.

Initially, 'contractile' meant 'capable of contracting', and with the prefix 'non-', it evolved to mean 'not capable of contracting'.